Fixes to NodeJS version.

app-new/frontend/test/app.test.tsx

@@ -32,10 +32,17 @@ describe("App", () => {
   });
 
   it("renders application heading", async () => {
-    const client = new QueryClient();
+    const client = new QueryClient({
+      defaultOptions: {
+        queries: {
+          retry: false,
+          gcTime: 0
+        }
+      }
+    });
     const theme = createTheme();
 
-    render(
+    const view = render(
       <QueryClientProvider client={client}>
         <ThemeProvider theme={theme}>
           <App />
@@ -44,5 +51,7 @@ describe("App", () => {
     );
 
     expect(await screen.findByText("Azure Image Chooser")).toBeInTheDocument();
+    view.unmount();
+    client.clear();
   });
 });